The Adjutant General shall administer this program. He may delegate authority to his subordinates within the South Carolina Military Department as is necessary to implement the program. The Adjutant General shall promulgate regulations specifying additional eligibility criteria for tuition assistance grants which shall include, but not be limited to, prior National Guard service requirements, required levels of military occupational skill proficiency, and recommendations required of an applicant's National Guard supervisors. Additionally, regulations shall be promulgated setting forth standards of academic performance to be met by persons receiving assistance in order to qualify for assistance in future years and, as necessary, specifically approving vocational and training schools as eligible institutions.